Dielectric Spectroscopy Study of Butadiene–Nitrile Rubbers

A number of butadiene-nitrile rubbers of different composition are studied in a wide range of temperatures and frequencies via dielectric relaxation spectroscopy (DRS). The main parameters of fragility and the Vogel–Fulcher–Tamman parameters of relaxation are determined. Dielectric spectra of cluster transitions in the high-temperature low-frequency region are presented for the first time and their relaxation characteristics are determined.